Mozilla releases Firefox 3.0 beta 4 — The fourth beta of the Firefox 3.0 browser was released Monday and includes more than 900 enhancements over the previous beta, Mozilla announced. — The creator of the open-source browser said the new beta includes performance and memory usage …

First look: Firefox 3 beta 4 brings new Vista hotness — Mozilla announced today the official release of Firefox 3 beta 4, which includes over 900 additional improvements related to the previous beta release. At this stage in development, most of the work on Firefox is heavily focused …

Wal-Mart ends test of Linux in stores — NEW YORK - Computers that run the Linux operating system instead of Microsoft Corp.'s Windows didn't attract enough attention from Wal-Mart customers, and the chain has stopped selling them in stores, a spokeswoman said Monday.

Hulu Launches with Warner, Lionsgate — Wow Hulu, you really pile it on, don't you? I can barely digest all the news the company is putting out tonight. First and foremost, it's launching tomorrow. It's also signed Warner Bros., Lionsgate, the NBA, and the NHL (but not Quincy Smith's CBS).

Searchme: A New Visual Search Engine — Today, Sequoia Capital, which has been a key investor of search giant Google, as well as Yahoo, will unveil its latest investment in search, a visual search engine called: Searchme. — The Mountain View, Ca.-based company, which has been germinating for three years …

Mark Zuckerberg on Data Portability: An Interview — Facebook founder Mark Zuckerberg is at SXSW doing press interviews today and many people want to know what his thoughts are concerning data portability. There's a big web out there that would like to give and take user data in and out of Facebook.

Sun dreams the impossible Java on Jesus Phone dream — Yes, Sun has “committed” itself to putting Java on the iPhone. But this is a bit like Miss Havisham committing herself to a life of marital bliss. — As several astute Reg readers have pointed out, Apple's end user licensing agreement …

A WordPress 2.5 Upgrade Guide — As you might know, WordPress 2.5 is about to be released, and we wanted to encourage WordPress users to upgrade. To Movable Type. — The truth is, there are lots of good blogging tools out there, and they're all good at different things.

IE8 speeds things up — IE8 Beta 1 has several performance improvements listed in the release notes. Many of these improvements center around the DOM and JavaScript execution. And their announcement about stricter standards compliance is a great move forward.

Home-grown video shows on tech are almost there. But not quite. — Without access to a potential audience of millions in the US and the subsequent advertising revenues, video webcasts on this side of the pond have been patchy affairs. And especially in the realm of tech business news the content tends to be thin on the ground.

NSA shifts to e-mail, Web, data-mining dragnet — The National Security Agency was once known for its skill in eavesdropping on the world's telephone calls through radio dishes in out-of-the-way places like England's Menwith Hill, Australia's Pine Gap, and Washington state's Yakima Training Center.

G.E. Chairman Rejects Talk of NBC Sale — Now hear this: NBC Universal is not for sale. No how, no way. — Looking to squelch persistent rumors, Jeffrey R. Immelt, the chairman of General Electric, plans to make his most definitive statement yet about his company's chief media asset.